A5073726825- Advanced machining processes and optimization
- Composite Structure Analysis and Optimization
- Material Properties and Applications
- Tribology and Lubrication Engineering
- Engineering Technology and Methodologies
- Lubricants and Their Additives
- Acoustic Wave Phenomena Research
- Vibration and Dynamic Analysis
- Aeroelasticity and Vibration Control
Henan University of Economic and Law
2021-2025
Henan Polytechnic University
2018-2019
Henan University
2019
Good machining performance and high surface quality can be achieved in engineering compound materials when subjected to ultrasonic vibration systems. This study established an system with a complex disk tool. The finite element simulation model of the tool was created using ANSYS software. Modal analysis utilized obtain disk’s resonance frequency other parameters. Based on local characteristics results, horn, transducers, components were designed. node position ultrasound accurately...
For the longitudinal–torsional composite integrated ultrasonic variable amplitude system with resonance produced by helical slots in cone of launch section, theoretical design, finite element simulation, and experimental study are carried out. The performed analysis slot structural characteristics revealed that depth, angle, width have a strong effect on natural frequency ratio torsional–longitudinal amplitude. A credible technique for adjusting deviation actual from design value traditional...
The surface with a certain microstructure and morphology has better wear resistance allows reduction in the drag noise. In this work, we supplemented an ultrasonic vibration thereby proposed underlying mechanism formation of face milling using kinematics model. Furthermore, established theoretical model machined microstructure. cutting test TC4 titanium alloy was conducted. rationality verified by adjusting corresponding parameters parameters. addition, friction tests were also performed....
摘要: 采用纵扭复合超声振动铣削进行加工时,由于加工中心等空间受限场合对超声振动系统的尺寸限制,利用四分之一波长理论设计集换能器和复合变幅杆为一体的非均匀介质超声振动变幅系统,在变幅杆部分设计螺旋槽结构实现纵扭共振,并研究纵扭模态转换理论。对非均匀介质变幅系统进行有限元分析,仿真结果表明纵振系统固有频率理论值与仿真值接近,偏差仅为0.245%;对螺旋槽结构进行仿真发现槽深对其对超声变幅系统固有频率、扭纵幅值比例影响较大,螺旋角的影响次之,槽宽影响最小,振动系统测试实验表明固有频率和扭纵幅值比的仿真结果与实验结果变化趋势一致。分别对TC4钛合金和C/C碳纤维进行纵扭超声振动铣削和传统铣削实验对比,结果显示相对于传统铣削,在纵扭超声振动铣削加工中两组材料表面粗糙度值Ra分别下降78%和47%。纵扭复合非均匀介质超声振动铣削系统结构简单紧凑、振动幅值和方向可控性较好,采用纵扭超声振动铣削能有效提高工件表面加工质量。